Extron Electronics MTPX Series User Guide - Manual (Page 82)

MTPX Twisted Pair Matrix Switchers • Programmer’s Guide 4-2
Programmer’s Guide
PRELIMINAR
Y
Serial Ports
The switcher has two serial ports that can be connected to a host device such as a
computer running the HyperTerminal utility, an RS-232 capable PDA, or a control
system. These ports make serial control of the switcher possible. The serial ports
are:
• The rear panel Remote (RS-232 or RS-422) port, a 9-pin D female connector
• The front panel Configuration (RS-232) port, a 2.5 mm mini stereo jack
The default protocol for both ports is as follows:
• 9600 baud • no parity • 8-bit
• 1 stop bit • no flow control
The ports can be configured to operate at the 9600, 19200, 38400, or 115200 baud
rate.
N These two ports are independent of one another. A front panel Configuration
port connection and a rear panel Remote port connection can both be active at
the same time.
N The switcher can operate at 9600, 19200, 38400, or 115200 baud rates, but
Extron recommends leaving these ports at 9600 baud.
Rear panel Remote port
RS-232 Function Pin Function
1
2
3
4
5
6
7
8
9 —
TX
RX
—
Gnd
—
—
—
—
Not used
Transmit data
Receive data
Not used
Signal ground
Not used
Not used
Not used
Not used —
TX–
RX–
—
Gnd
—
RX+
TX+
—
Not used
Transmit data (–)
Receive data (–)
Not used
Signal ground
Not used
Receive data (+)
Transmit data (+)
Not used
RS-422
5
1
9
6
RS232/RS422
REMO
TE
Figure 4-1 — Remote connector pin assignments
N The rear panel Remote port can support either RS-232 or RS-422 serial
communication protocol. See “Selecting the rear panel Remote port protocol and
baud rate” in chapter 3, “Operation”, to configure the rear panel Remote port
from the front panel.